Last year, I was lucky enough to find out about this site on Ning : http://willowing.ning.com/
Tam is an amazing person. She teaches online art classes and she opened up a free course! I think that was so generous of her. I can just imagine how much time she took to give such a good class. Tam decided to leave the class open indefinitely so you can still join. It's done through recorded videos. She also offers many other classes so be sure to check it out! Here's her blog http://willowinglove.blogspot.com/
Hope to see you on Willowing!